【】Direct-operated pressure reducing valve. The simplest pressure reducing valve, the direct-operated pressure reducing valve, has a flat diaphragm or bellows. Because it is a self-contained layout, there is no need for external sensing wires downstream of the device. It is the smallest and most economical of all pressure reducing valves and is designed for medium and low flows. The accuracy of direct-operated pressure reducing valves is generally / of the downstream set point. 【】Pilot-operated piston pressure reducing valve. This type of pressure reducing valve integrates two valves - pilot valve and main valve - into one. The design of the pilot valve is similar to that of a direct-operated pressure reducing valve. The exhaust pressure from the pilot valve acts on the piston, causing the piston to open the main valve. If the main valve is large and cannot be opened directly, this design will use the inlet pressure to open the main valve. Therefore, this type of pressure reducing valve has higher capacity and accuracy (/) than the direct effect pressure reducing valve under the same pipeline size. Like the direct-operated pressure reducing valve, the pilot-operated piston pressure reducing valve senses pressure internally and does not require external sensing lines.
【】Pilot diaphragm pressure reducing valve. In this type of pressure reducing valve, a double diaphragm replaces the piston in a pilot diaphragm pressure reducing valve. This increased diaphragm area can open a larger main valve, and under the same pipe size, its capacity is larger than that of the pilot-operated piston pressure reducing valve. In addition, the diaphragm is more sensitive to pressure changes, with an accuracy of up to /. The higher accuracy is due to the positioning of the downstream sensing line (the outside of the valve where the gas or liquid is located is less turbulent. The pressure reducing valve is very sensitive.
【Ⅰ】Model
【Ⅱ】Dimensions< br/> 【Ⅲ】Pressure
【Ⅳ】Material cast steel stainless steel
【Ⅴ】Connecting flange flange thread
【Ⅵ】Applicable to steam, air, oxygen, water and other fluid systems
/> If you are interested in the pressure reducing valve, please consult or place an order according to the following requirements
① Product name and type of pressure reducing valve ② Pressure reducing valve caliber ③ Front and rear pressure of the pressure reducing valve installation pipeline ④ Pressure reducing valve used Medium and temperature
If the pressure reducing valve of Ari Valve Company has been designated by the planning unit, please order directly from our sales department according to the model and other parameters.
When the application occasion is very important or the environment is complex , please try your best to provide design drawings and specific parameters, and our engineers from Ari Valve Company will review and check them for you.
FIG.DRV4 self-operated pressure reducing valve, DIN flange pressure reducing valve